Statistical analysis of low-frequency noise recorded in ASIAEX by a PANDA system
Abstract
As part of the ASIAEX experiment, the Acoustic Research Laboratory in the Tropical Marine Science Institute at the National University of Singapore deployed a Pop-up Ambient Noise Data Acquisition (PANDA) system. The PANDA was recovered 18 days later with over 9 days of continuous data recorded from a single hydrophone at 2 kSa/s. The data show the various sources that were deployed as part of the experiment, but also provide interesting statistical information on low-frequency ambient noise in the region and the passage of numerous ships. This deployment was in a heavy shipping traffic area, hostile both in terms of potential snagging by fishing activity and in terms of the high levels of noise encountered, both of which are of interest for the deployment and successful use of autonomous acoustic systems in busy littoral waters. We present some statistical results from the 3+ GByte of data. [Work supported by the Defence Science and Technology Agency, Singapore and the US ONR.]
- Publication:
-
Acoustical Society of America Journal
- Pub Date:
- November 2002
- DOI:
- 10.1121/1.4780094
- Bibcode:
- 2002ASAJ..112.2450P
- Keywords:
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- Acoustic Measurement;
- Data Acquisition;
- Low Frequencies;
- Noise (Sound);
- Statistical Analysis;
- Tropical Regions;
- Underwater Acoustics;
- Acoustics